Technical Data - ABB RELION REX640 Technical Manual

1MRS759142 C
5.9.10
5.10
5.10.1
5.10.2
5.10.3
REX640
Technical Manual

Technical data

Table 1073: DSTPLAL Technical data
Characteristic
Operation accuracy
Operate time accuracy
Suppression of harmonics
Scheme communication logic DSOCPSCH
Identification
Function description
Scheme communication logic
Function block
GUID-3E3304C0-7DD4-4BB8-A2F8-400BEAB6F47D V1 EN
Figure 615: Function block
Functionality
The scheme communication logic function DSOCPSCH is used to achieve
instantaneous fault clearing independent of the fault location on the protected feeder.
Several communication scheme types are available.
• Direct underreaching transfer trip DUTT
• Permissive underreaching transfer trip PUTT
• Permissive overreaching transfer trip POTT
• Directional comparison blocking scheme DCB
Protection related functions
Value
At the frequency f = f
±1.5% of the set value or ±0.002 × I
±1.0% of the set value or ±20 ms
DFT: -50 dB at f = n × f
IEC 61850 IEC 60617
identification identification
DSOCPSCH CL
Section 5
n
n
, where n = 2, 3, 4, 5,...
n
ANSI/IEEE C37.2
device number
85 21SCHLGC
1139